SpectraLink
Link 150 Installation and Operation
12/28/98
17
5.3 Install MCUs
Perform this procedure for each MCU.
1.
Connect the power plug from the AC adapter to the jack labeled POWER on the
back of the MCU.
For installations with more than one MCU, use an outlet strip with a built in
power switch. This allows the MCUs to be turned on and off together.
2.
Plug the AC adapter into a 110VAC outlet or switch on the outlet strip to apply
power to the MCU.
−
The seven-segment display on the front of the unit will briefly display a
P
,
followed by
O
. The
O
displays for a few minutes while the system
performs self-diagnostics.
−
When the unit displays its box ID (which will be
1
to
4
) the system is ready
for operation. If the system displays an error refer to 8.1
Troubleshoot
Error .
5.3.1 Connect Multi-Unit Systems
If the system has only one MCU, skip to 5.3.2
Connect MCU to Base Station Wiring.
Use the following procedure to connect multiple MCUs.
1.
Set the MCUs side by side and remove power from each unit.
Because the diagnostic modem requires a port, the first unit cannot be an
MCU without ports, it must be an eight or sixteen line MCU.
2.
Connect the IPC cable from the OUT Port of the first unit to the IN Port of the
adjacent unit, as illustrated below. Repeat until all units are connected.
1
1
2
3
4
LINES
5
6
7
8
CELLS
PWR
!
IPC
IN
OUT
ALARM
OUT
9
10
11
12
LINES
13
14
15
16
2
3
4
1
1
2
3
4
LINES
5
6
7
8
CELLS
PWR
!
IPC
IN
OUT
ALARM
OUT
9
10
11
12
LINES
13
14
15
16
2
3
4
1
1
2
3
4
LINES
5
6
7
8
CELLS
PWR
!
IPC
IN
OUT
ALARM
OUT
9
10
11
12
LINES
13
14
15
16
2
3
4
MCU 3
MCU 2
MCU 1
Place units side by side, do NOT stack units on top of each other. Stacked
units will cause overheating and intermittent failure.
No IPC cable is connected to the IN Port of the first unit or to the OUT Port
of the last unit.
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